You should also set out one cup (240 ml) of ice water (although you may end up using less). Mix together the dry ingredients in a large bowl.
[header] How to make mixed berry slab pie [title] Gather your supplies and mix the dry ingredients. [step] You'll need to chill 1/3 of a cup (75 g) of butter and cut it into chunks. Set it aside along with 3/4 cup (145 g) of vegetable shortening.