→ Base
01 -
2 (21-ounce) tins blueberry pie filling
02 -
1 (15.25-ounce) package yellow, white, or lemon cake mix
03 -
1 1/2 sticks (6 ounces) unsalted butter, kept cold, plus extra for pan
04 -
2 cups blueberries, fresh or frozen (roughly 10 ounces)
→ Serving
05 -
Vanilla ice cream (if you want)