A moist and tender rhubarb coffee cake with a cinnamon sugar topping that balances tartness and sweetness perfectly. Ideal for spring brunches and cozy mornings.
If rhubarb is very tart, sprinkle with 1 teaspoon sugar and let sit 10 minutes before folding in. Use softened butter for best texture. Avoid overmixing batter to keep cake tender. Tent with foil if topping browns too quickly. Frozen rhubarb can be used if thawed and drained. For gluten-free, substitute flour with 1-to-1 gluten-free blend. For dairy-free, use coconut yogurt and dairy-free butter alternative.
Keywords: rhubarb coffee cake, cinnamon sugar topping, moist coffee cake, spring brunch, easy coffee cake, homemade coffee cake