1teaspoonrum extractoptional, if you want stronger rum flavor
Instructions
For the frosting: Combine flour, sugar and salt in a small saucepan, whisk together. Add milk and 4 tablepoons spiced rum and whisk to combine. Place over low heat, and allow the mixture to come to a boil, whisking constantly. Cook for 1-2 minutes until thicken. Remove from heat and pour into a small bowl, cover with plastic foil, but make sure foil is touching the pudding to avoid making a skin on top of it. Put it in the refrigerator to speed cooling but keep in mind that pudding needs to be room temperature because later we will mix in a softened butter.
Heat oven to 180 °C (350°F).
Grease and flour or line the bottom with parchment paper 23x33 cm (9x13 inch) baking pan.
Beat egg whites with salt until stif peaks form; set aside.
In medium bowl, mix flour, baking powder, baking soda and spice mix.
In water bath or in microwave (in 30 seconds intervals) melt chocolate. Set aside to cool.
In large bowl, beat softened butter, brown and granulated sugar with electric mixer on medium speed until creamy, 3-4 minutes. Add in egg yolks, one at the time, beating well after each addition. Beat in vanilla, oil and melted chocolate. Add flour mixture to butter mixture in 3 additions, alternating with kefir/yogurt (dry-wet-dry-wet-dry). Do not over mix! Using a rubber spatula gently fold in beaten egg whites and chocolate chips, if using! Pour batter into prepared pan and bake around 15-20 minutes or when toothpick inserted in center of a cake comes out clean.
Make the frosting: Once the pudding has cooled, beat the butter bowl until smooth and fluffy and lightened in color, around 5 minutes. Add the cooled pudding (which will look like glue at this point) one tablespoon at a time, mixing well after each addition. Add in additional 2 Tbsp rum and rum extract if using. Once all the pudding has been added, mix for another few minutes, until the buttercream looks thick, smooth and creamy. Using arubber spatula stir vigorously for about a minute to get rid of any large air bubbles.
Spread the buttercream over cooled cake and decorate to your liking.
Notes
I always suggest using a kitchen scale. If you don't have one, buy it! They are cheap and you will always ensure same results in baking!
Tried this recipe?Tag @mihaela_biteitquick on Instagram! I would love to see what you've baked!