This blueberry coffee cake is bursting with fresh blueberries and has a crumbly streusel topping that is hard to resist. The cake is moist and tender, with a subtle hint of lemon that complements the sweetness of the blueberries. It's a perfect recipe for a summer brunch or a lazy weekend breakfast. Serve it warm with a dollop of whipped cream or a scoop of vanilla ice cream for a decadent treat.
