→ Base
01 -
2 (21-ounce) cans blueberry pie filling
02 -
1 (15.25-ounce) box yellow, white, or lemon cake mix
03 -
1 1/2 sticks (6 ounces) cold unsalted butter, plus more for greasing
04 -
2 cups fresh or frozen blueberries (about 10 ounces)
→ Serving
05 -
Vanilla ice cream (optional)