This gluten-free blueberry crumb cake is a delicious option for those with gluten sensitivities. The cake is made with a blend of gluten-free flours, including almond flour and coconut flour, and is sweetened with fresh blueberries and honey. The crumb topping is made with gluten-free oats, almond flour, and honey, and is sprinkled over the top of the cake before baking. The result is a moist and flavorful cake that is perfect for breakfast or dessert. Serve the cake warm with a dollop of whipped cream or a scoop of vanilla ice cream for a delicious treat.