Peanut Butter Crumb Cake
["1 3/4 c. flour", "1/2 c. brown sugar", "1/2 c. sugar", "1 tsp. cinnamon", "1 tsp. nutmeg", "1/2 c. butter", "1 tsp. baking powder", "1/2 tsp. soda", "3/4 c. sour milk *", "1 egg", "1/2 c. peanut butter"]
["*Use 3/4 cup milk and 2 teaspoons vinegar; let set 5 minutes."]
["flour", "brown sugar", "sugar", "cinnamon", "nutmeg", "butter", "baking powder", "soda", "sour milk", "egg", "peanut butter"]