Tequila and key lime may sound like ingredients headed for a margarita, but I put both into a Bundt cake. Tequila gets mixed with the milk before it goes into the batter, while key lime juice and zest bring the citrus flavor.

I don’t stop once the cake comes out of the oven. I poke holes across the surface and brush it with a key lime syrup made from juice and sugar. The cake absorbs the syrup before I add a key lime cream cheese frosting.
Tequila Goes Straight Into the Batter
I start by mixing milk and tequila in a measuring cup. In a separate bowl, I beat butter and sugar, then add salt, eggs, baking powder, and flour. The tequila mixture goes in as I add the flour, followed by key lime zest and juice.
The tequila isn’t meant to overpower the lime. I want the citrus to lead, with tequila adding another note behind it. Using both key lime juice and zest puts lime throughout the cake instead of saving all the citrus for the frosting.
I Brush the Cake With Key Lime Syrup
The cake bakes at 350°F for 55 to 60 minutes. After five minutes in the pan, I turn it onto a cooling rack and use a toothpick or narrow skewer to poke holes across it.

For the syrup, I heat key lime juice and granulated sugar until the sugar dissolves. I brush it over the cake, wait for it to soak in, then add more if any syrup remains. This extra step puts more lime into the baked cake and adds moisture before the frosting goes on.
Cream Cheese Frosting Adds More Lime
Once the cake has cooled, I beat cream cheese with powdered sugar, key lime zest, and key lime juice. I adjust the sugar or juice until the frosting is loose enough to spread or drizzle over the Bundt cake.
That gives me lime in three places: juice and zest in the batter, juice in the syrup, and both juice and zest in the frosting. Tequila stays in the cake itself, so the finished dessert takes its cue from a margarita without turning into a cocktail-flavored frosting.
Each Slice Gets the Margarita Combination
Cutting into the Bundt cake reveals a soft interior beneath the cream cheese topping. The lime syrup has already soaked into the cake, so the citrus isn’t confined to what sits on top.
I like this approach because brushing the cake after baking isn’t just another garnish. It changes the cake before the frosting touches it, giving the key lime another chance to soak into each slice.
Leave a Reply