Moist Banana Cake with Crunchy Cinnamon Streusel
Desserts

Moist Banana Cake with Crunchy Cinnamon Streusel

ML
By Marie Lefebvre · Updated September 27, 2026

A soft, fluffy banana cake topped with a golden, buttery cinnamon streusel that bakes to a perfect crunch. Easy to make with ripe bananas, this crowd-pleaser is perfect for dessert or an afternoon snack.

Prep⏱️ 60 min
Servings👥 10 servings
Difficulty📊 Easy
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🛒 Ingredients

10 servings

10
  • 3 eggs
  • 2 tablespoons unsalted butter, softened (+ extra for greasing)
  • 2 cups (400 g) granulated sugar
  • 1½ cups (375 ml) whole milk
  • 2 cups (250 g) all-purpose flour (+ extra for dusting)
  • 1 pinch of ground cinnamon
  • 1 tablespoon baking powder
  • 6 ripe bananas, halved lengthwise
  • Streusel: 1 cup (200 g) coarse sugar
  • Streusel: 1 teaspoon ground cinnamon
  • Streusel: 1 cup (125 g) all-purpose flour
  • Streusel: 3 tablespoons cold unsalted butter, diced

Directions

  1. 1

    Preheat oven to 350 °F (180 °C). Grease and flour a rectangular baking pan.

  2. 2

    Using a hand mixer, beat the eggs and softened butter together. Gradually add the sugar and beat until light and fluffy.

  3. 3

    Pour in the milk in a steady stream, then fold in the flour a little at a time to keep the batter smooth.

  4. 4

    Stir in the pinch of cinnamon and baking powder until just combined.

  5. 5

    Pour the batter into the prepared pan and spread evenly.

  6. 6

    Arrange the banana halves cut-side up over the entire surface of the batter.

  7. 7

    Make the streusel: combine coarse sugar, cinnamon, and flour, then rub in the cold butter with your fingertips until the mixture resembles coarse, clumpy sand.

  8. 8

    Scatter the streusel evenly over the bananas.

  9. 9

    Bake for 30–40 minutes, until the top is deep golden brown and a skewer inserted in the centre comes out clean. Cool slightly before serving.

💡 Chef's Tip

The riper the bananas (lots of brown spots), the sweeter and more fragrant your cake will be. For an extra-crispy topping, pop the cake under the broiler for 2 minutes at the very end.