Vintage Pineapple Inversion Cake

A vintage pineapple inversion cake is a tender butter cake baked on top of a caramelized pineapple and brown sugar base, then flipped onto a plate so the fruit and glaze top the cake. The pineapple stays moist and the cake stays soft because the fruit releases its juice as it bakes, soaking down into the crumb. What makes it work is flipping the hot cake while the caramel is still sticky enough to cling.

Ingredients for Vintage Pineapple Inversion Cake

Butter creates a tender crumb and browns slightly to deepen the flavor. Brown sugar caramelizes with the butter and pineapple juice to make the sticky glaze that clings to the cake. Pineapple rings soften and absorb the caramel as the cake bakes. All-purpose flour gives structure without toughening the cake. Granulated sugar sweetens the batter and helps it rise. Eggs bind the batter and add richness. Vanilla extract deepens the flavor. Baking powder makes the cake rise and keeps it light. Salt balances the sweetness and brings out the vanilla.

Why This Vintage Pineapple Inversion Cake Works

The cake bakes directly over the caramel and pineapple, so the fruit stays in contact with the heat and caramelizes slightly while the cake rises underneath. The pineapple juice drips down into the batter as it bakes, keeping the cake moist all the way through.

Room-temperature butter and eggs mix into a smooth batter that rises evenly in the oven. The cake needs to be firm enough to hold together when you flip it, but still warm enough that the caramel sticks to it instead of sliding off. Cooling it for a few minutes in the pan lets it set just enough.

Mistakes To Avoid

Skipping the pineapple juice leaves the cake dry and the caramel thin. The fruit needs those extra juices to stay glossy and to soak into the crumb as it bakes.

Waiting too long to flip the cake makes the caramel hard and brittle so it cracks and flakes off instead of staying stuck to the cake. Flip it as soon as it comes out of the oven while the pan is still hot.

Overmixing the batter after adding the flour makes the cake tough and dense. Stir the flour mixture in only until you see no white streaks, then stop.

Baking the cake on the wrong oven rack makes the top brown too fast while the bottom stays pale and underbaked. Use the middle rack so heat reaches the pineapple and caramel evenly.

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Ingredients

• 4 tablespoons butter, plus more for the pan
• 1/2 cup packed brown sugar
• 1 can (20 ounces) pineapple rings in juice, drained, juice reserved
• 1 1/2 cups all-purpose flour (188 grams)
• 1 cup granulated sugar
• 1/2 cup butter, room temperature
• 2 large eggs, room temperature
• 1 teaspoon vanilla extract
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon salt
• 1/2 cup whole milk, room temperature

Step-by-step Instructions

1. Heat the oven to 350°F (175°C). Butter a 9-inch round cake pan.
2. Melt 4 tablespoons butter in a small saucepan over medium heat, then stir in the brown sugar until it dissolves, about 1 minute. Pour into the bottom of the prepared pan and spread evenly.
3. Arrange the drained pineapple rings over the brown sugar mixture, filling in gaps with smaller pieces. Brush with 2 tablespoons of the reserved pineapple juice.
4. In a small bowl, whisk together the flour, baking powder, and salt. Set aside.
5. In a large bowl, beat the room-temperature butter and granulated sugar with an electric mixer on medium speed until light and fluffy, about 3 minutes. Add the eggs one at a time, beating well after each addition. Add the vanilla and beat until combined.
6. Add half the flour mixture to the butter mixture and beat on low speed until just combined. Add the milk and beat until combined. Add the remaining flour mixture and stir by hand just until no white streaks remain.
7. Pour the batter over the pineapple, spreading it gently so you do not disturb the fruit. The batter should cover the fruit completely.
8. Bake on the middle oven rack for 45 to 50 minutes, until a cake tester inserted into the center comes out clean or with a few moist crumbs and the top is golden brown.
9. Remove from the oven and let cool in the pan for 2 to 3 minutes. Place a plate larger than the pan over the top of the pan and carefully invert the cake onto the plate. Leave the pan on top for 30 seconds, then lift it away. If any pineapple or caramel sticks to the pan, scrape it off and place it on top of the cake.
10. Let the cake cool to room temperature, about 30 minutes, before slicing and serving.