This blueberry oatmeal crumb cake recipe is a healthier option for those who want to indulge in a delicious dessert. The cake is made with whole wheat flour, oats, sugar, baking powder, salt, butter, eggs, milk, vanilla extract, and fresh blueberries. The oatmeal crumb topping adds a delicious crunch to every bite. To make the cake, mix the dry ingredients, cream the butter and sugar, add the eggs and vanilla, and alternate adding the dry ingredients and milk. Fold in the blueberries and pour the batter into a greased baking dish. For the oatmeal crumb topping, mix oats, flour, sugar, and butter until crumbly, and sprinkle over the cake batter. Bake for 45-50 minutes, and enjoy a delicious blueberry oatmeal crumb cake!