Quilt Along Quilt Patterns

How to Make a Large Blueberry Pie Quilt Block

With a name like blueberry pie, this geometric block does not sound like it belongs in the quilting world, but wow is it stunning. It has a lot of half square triangles in it which means that it is right up my alley. I love half square triangles. This version is also a nice big block. It measures 18 1/2 inches when done. If you are looking for a block that is super eye-catching then you will want to learn how to make a large blueberry pie quilt block.

In addition to being a stunner, this is also part of my 2021 mystery quilt called “Stars of the Prairie”. In fact after this one, there is only one block left to go until we put it all together in December. If you are here because you are participating in the mystery quilt then stick around until the end. It is there that you will find out how many of these blocks we need this month.

If you are here for this tutorial, then welcome and get ready to sew up a beauty!

*Download the Free Blueberry Pie Quilt Block PDF Pattern Here*

Please read all instructions carefully before beginning. Use a scant 1/4″ seam allowance when sewing this block.

Supplies Needed

Along with the fabric, you will need some general quilting supplies.

Cutting mat

12 1/2″ quilter’s ruler

Rotary Cutter

Sewing Supplies

As an Amazon Affiliate I earn from qualifying purchases.

How to Make a Large Blueberry Pie Quilt Block (18 1/2″)

Fabric Needed

Background Fabric: Fat quarter, Fabric A: Fat eighth, Fabric B: Fat eighth, Fabric C: Fat eighth, Fabric D: Fat eighth, Fabric E: 6 ½ inch square

Cutting Instructions:

Background Fabric:

4 squares cut 3 ½ inches by 3 ½ inches

8 squares cut 4 ¼ inches by 4 ¼ inches

Fabric A:

8 squares cut 4 ¼ inches by 4 ¼ inches

Fabric B:

4 squares cut 4 ¼ inches by 4 ¼ inches

Fabric C:

4 squares cut 3 ½ inches by 3 ½ inches

Fabric D:

4 squares cut 4 ¼ inches by 4 ¼ inches

Fabric E:

1 square cut 6 ½ inches by 6 ½ inches

Video Tutorial

Block Assembly:

To make the half square triangles you will need the 4 ¼ inch squares. Match them up as follows:

Background Fabric with Fabric A: 4 pairs

Background Fabric with Fabric D: 4 pairs

Fabric A with Fabric B: 4 pairs

On each of the pairs, draw a diagonal line on the back (wrong) side of the lighter fabric. This will be your sewing guide.

Line up each pair of squares with front (right) sides facing each other.

Using a ¼ inch seam allowance, sew along both sides of the drawn diagonal line.

Cut down the center, along the drawn line. You will end up with two blocks that need to be pressed open.

Trim them down to 3 ½ inches square. Repeat with the other pairs. You will end up with 24 half square triangles.

Lay out your blocks as shown.

My apologies for this photo. I was having major camera issues the day I made this block. Refer back to the diagram to get the full layout.


Sew the individual rows together first.

Because of the large center, sew the third and fourth rows together in one section. Sew the half square triangle sections together and then add those to the center square as shown.

Once all of the individual rows are completed, sew them together to form the block. It should measure 18 ½ inches.

If You Are Participating in the 2021 Stars of the Prairie Mystery Quilt:
You need to make 1 of these blocks this month.

Feel free to join in the mystery quilt fun. You can find all of the details in this article.

In addition, I have this FB group for people who are participating. It’s a fun place to see what other people are doing for their blocks.

What we’ve done so far:

January

February

March

April

May

June

July

August

September

Show off your progress on social media! Make sure to use the hashtag #createwithclaudiaqal if you post any pictures!

*This mystery quilt along is for entertainment purposes only. Therefore, there are no prizes or giveaways.* Best efforts have been made to ensure that the instructions are correct, however sometime errors occur. If you have any questions, please contact us *

Leave a Reply