Coffee Crumble Muffins

Ingredients
2 1/2 cups all-purpose flour
2 tsp baking powder
1/2 tsp baking soda
1/2 tsp salt
3 Tbsp Coffee powder, Instant
1 Tbsp cocoa powder
1 cup packed brown sugar
2 large eggs
1/2 cup canola or vegetable oil
1 tsp vanilla
1 cup evaporated milk
1 Tbsp vinegar
1/2 cup chocolate chunk or chips
Streusel Topping
1/3 cup all-purpose flour
2 Tbsp brown sugar
1/4 tsp cinnamon powder
3 Tbsp melted butter
Bake in a preheated oven at 375°F for 20 minutes or until done.
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[@chunlizang2278]

Can i omit the vinegar? Thank you

[@sheanskitchen4845]

Yes.