These blueberry crumb cake pancakes are a delicious and easy-to-make breakfast. The pancake batter is made in a food processor, with flour, sugar, baking powder, salt, butter, eggs, and milk. The blueberries are folded into the batter and the streusel topping is made with flour, sugar, butter, and cinnamon, mixed in the food processor until it forms coarse crumbs. The pancakes are cooked on a griddle until golden brown and the streusel is crunchy. These pancakes are perfect for a special occasion or a lazy weekend breakfast.