Are you ready for another Weekend Mystery Crochet Along with Underground Crafter?! This pattern will be released with three clues. This blog post will be updated daily on Friday, Saturday, and Sunday, June 3-5, 2022 with new clues. After the pattern has been released, this post will be updated with “the big reveal.”

This post contains affiliate links. I may receive compensation (at no added cost to you) if you make a purchase using these links. I am a King Cole Brand Ambassador and this post is part of our ongoing collaboration. All opinions and words are my own. Nelsonwood generously provided the crochet hook for this project.
Scroll down to get the free pattern for the Blue Tinted Set. This is the fourth pattern in the Weekend Mystery Crochet Along with Underground Crafter. You can get all the details about how the Weekend Mystery CALs work and links to past projects here. To join this Weekend Mystery Crochet Along:
- Sign up for my newsletter to get the announcement for each Weekend Mystery CAL and a reminder when the CAL starts.
- You can join in by crocheting the patterns as you have time.
- Share your progress and post pictures of your finished projects. Tag your projects and posts #undergroundcrafter on all social media.
- If you’d like to chat with other crocheters, visit this post in the Underground Crafters Facebook group or this thread in the Underground Crafter Ravelry group.
- Use this button below on your Ravelry project pages or elsewhere on social media. Right click (on desktop) or tap and hold (on mobile) to save.

If you make your own Blue Tinted Set, I’d love to see it! Share your progress and questions by tagging me on Facebook as @Underground Crafter or on Instragram as @ucrafter. You can also share a picture in the Underground Crafters Facebook group. Sign up for my weekly newsletter and get a coupon code for your choice of one of my premium patterns and private access to my vault of subscriber goodies. Plus, you’ll never miss one of my free patterns again!
Add the Blue Tinted Set to your favorites or queue, or buy the ad-free PDF on Ravelry.
Blue Tinted Set
Crochet Pattern by Underground Crafter



This is the fourth pattern in the Weekend Mystery Crochet Alongs with Underground Crafter. This post will be updated with new clues every day Friday through Sunday, June 3-5, 2022. After the CAL ends, this pattern will be updated with “the big reveal.”
Finished Sizes
- Are a mystery!
Materials
- King Cole Cottonsoft DK yarn (100% cotton, 3.5 oz/100 g, 229 yd/210 m) – 1 skein each in 714 Sky (CA) and 3365 Midnight (CB), or approximately 229 yd (210 m) in each of two colors in any light weight, cotton yarn.
- Cottonsoft DK is available from your local yarn shop or online at LoveCrafts or Wool Warehouse UK.
- King Cole Cottonsoft Crush DK yarn (100% cotton, 3.5 oz/100 g, 229 yd/210 m) – 1 skein in 2436 Bluebell (CC), or approximately 229 yd (210 m) in any light weight, cotton yarn.
- Cottonsoft Crush DK is available from your local yarn shop or online at Wool Warehouse UK.
- Nelsonwood Black Cat US Size G-6/4 mm crochet hook, or size needed to obtain gauge.
- Stitch markers.
- Yarn needle.

Gauge
- Motif = 5” (13 cm) square in pattern when completed. Exact gauge is not critical for this pattern.
- 22 scBL = 4” (10 cm). Exact gauge is not critical for this pattern.
Abbreviations Used in This Pattern
- BL – back loop only – Leisure Arts has a helpful video tutorial for identifying the back loop here.
- CA – Color A
- CB – Color B
- CC – Color C
- ch – chain
- pm – place stitch marker
- rep – repeat
- Rnd(s) – Round(s)
- sc – single crochet
- sl st – slip stitch
- sp – space
- st(s) – stitch(es)
- yo – yarn over
- * Repeat instructions after asterisk as indicated.
- [] Repeat instructions between brackets as indicated.
Pattern Instructions
Part I: Motif
- Use your choice of CA, CB, or CC for the inside color and another color as the outside color.
- With inside color, ch 2.
- Row 1: Turn, skip first ch, 3 sc in next ch, pm in second (center) sc to mark position. Move up marker each row unless otherwise indicated. (3 sts)
- Row 2: Turn, 1, scBL in first st, 3 scBL in marked st, pm in second (center) of 3 sc to mark position, scBL in next st. (5 sts)
- Row 3: Turn, ch 1, scBL in first st and in each st across to marked st, 3 scBL in marked st, pm in second (center) of 3 sc to mark position, scBL in next st and in each st across. (Increases by 2 sts)
- Rep Row 3, 18 more times, or until piece measures approximately 4.25” (11 cm), changing to outside color in last yo of final sc (see video below). Fasten off inside color.
- If you can’t see the video above for changing colors in single crochet and crocheting over yarn tails, click HERE to watch it on Facebook.
- Border Rnd 1: Turn, ch 1, scBL in first st and in each st across to marked st, (sc, ch 2, sc) in marked st, scBL in next st and in each st across final row, ch 2, turn to work along next side, sc in side of each row (see video below) to foundation row, (sc, ch 2, sc) in unworked side of foundation row, turn to work along next edge, sc in side of each row, ch 1, join with sc (counts as second ch in ch-2 sp) to first sc.
- If you can’t see the video above for single crocheting around the side of your project, click HERE to watch it on YouTube.
- Border Rnd 2: Ch 1, sc in same ch-2 sp, *sc in next st and in each st across side to ch-2 sp,** (sc, ch 2, sc) in next ch-2 sp; rep from * around, ending at ** with final repeat, sc in first ch-2 sp, ch 1, join with sc (counts as second ch in ch-2 sp) to first sc.
- Rep Border Rnd 2 if necessary until Motif measures approximately 5” (13 cm) square.
- If you guessed that Clue 1/Motif of the Mystery CAL is a Coaster, you are correct! Make additional Coasters as needed for your household size, average guest list size, or in the household size of the intended recipient.
- You can choose to make all in the same color combination for uniformity, or use different combinations of inside and outside colors.

Part II: Piece I
- With CB, ch 31.
- Row 1: Turn, skip 1 ch, sc in next ch and each ch across. (30 sts)
- Row 2: Turn, ch 1, scBL in first st and in each st across.
- Rep Row 2 until piece is square (see video below), changing to CC in last yo of final sc. Fasten off CB.
- If you can’t see the video tutorial above demonstrating how to make sure a crochet piece is square, click HERE to watch it on Instagram.
- Border Rnd 1: Turn, ch 1, sc in first st and next 29 sts across row, ch 2, turn to work along side, evenly work 30 sc across side of rows (see video in Part I), ch 2, turn to work along foundation ch, sc in unworked side of 30 sts across foundation chain, ch 2, turn to work along side, evenly work 30 sc across side of rows, ch 1, join with sc (counts as second ch in ch-2 sp) to first sc. (120 sts + 4 ch-2 sp)
- Rep Border Rnd 2 (below) as necessary until piece measures approximately 7” (18 cm) square. Fasten off CC.
- Border Rnd 2: Ch 1, sc in same ch-2 sp, *sc in next st and in each st across side to ch-2 sp,** (sc, ch 2, sc) in next ch-2 sp; rep from * around, ending at ** with final repeat, sc in first ch-2 sp, ch 1, join with sc (counts as second ch in ch-2 sp) to first sc.

Part III: Piece II and Finishing
- Rep as for Piece I/Part II, starting with CA and finishing with CC. Aim to have the same number of Border Rounds in both pieces. This is more important than having each piece measure a specific size. Do not fasten off CC.
Joining
- By now, you may have guessed that we are making a two-layered potholder!
- Position Piece I on bottom, then place Piece II on top with ridges from scBL rows perpendicular to Piece I scBL rows. This will create extra depth between layers. Line up pieces so that corner ch-2 spaces are aligned. Join with single crochet seam (see video below) by working through both pieces as follows:
- Ch 1, sc in same ch-2 sp, [*sc in each st across side to next ch-2 sp,** (sc, ch 2, sc) in ch-2 sp] 3 times, rep from * to ** once, sc in next ch-2 sp.
- To add optional hanging loop: Ch 13, sl st to first sc, sl st in next 13 ch, sl st to last sc. Fasten off CC.
- To finish without hanging loop, ch 2, join with sl st to first sc. Fasten off CC.
- If you can’t see the video tutorial for joining with the single crochet seam above, click HERE to watch it on Instagram.