Step 1 of 10
Sugar-Free Red Velvet Cake
Preheat the oven to 350°F.
Step 2 of 10
Sugar-Free Red Velvet Cake
Spray two 8- or 9-inch round cake pans liberally with nonstick cooking spray. Set aside.
Step 3 of 10
Sugar-Free Red Velvet Cake
Place the butter, canola oil, Splenda, and vanilla in a large mixing bowl. Using a hand mixer or a stand mixer fitted with a whisk attachment, cream the ingredients together on medium speed until smooth, about 1 minute. Add the eggs and continue to beat, scraping down the sides of the bowl as needed, until the mixture is light and fluffy, about 1 minute.
Step 4 of 10
Sugar-Free Red Velvet Cake
Sift the flour, cocoa powder, baking soda, and salt into the bowl. Beat the mixture on low until the ingredients begin to come together. Slowly stream in the buttermilk and food coloring and continue mixing, scraping down the sides of the bowl as needed, until a smooth, vibrant batter forms. Pour the batter into the two cake pans, dividing it evenly.
Step 5 of 10
Sugar-Free Red Velvet Cake
Bake the cakes on middle rack of oven until a toothpick inserted in the center comes out clean, 28-33 minutes.
Step 6 of 10
Sugar-Free Red Velvet Cake
Check to see that cakes are done. Remove from oven or add time as needed.
Step 7 of 10
Sugar-Free Red Velvet Cake
Allow the cakes to cool in the pans for 15-20 minutes. To release, run a butter knife between the edge of the cake and the pan. Turn each cake out onto a cooling rack. Allow the cake to cool for 1-2 hours before frosting and serving.
Step 8 of 10
Sugar-Free Red Velvet Cake
While the cakes cool, make the whipped cream cheese frosting. Place the cream cheese, Splenda, and vanilla extract in a large mixing bowl. Beat with a hand mixer on medium-high speed until completely smooth, 2-3 minutes.
Step 9 of 10
Sugar-Free Red Velvet Cake
Add half the heavy cream and the salt to the bowl. Beat on low speed to incorporate the heavy cream into the cream cheese, then stream in the remaining cream. Beat on medium-high speed just until the whipped cream holds stiff peaks, 2-3 minutes. Do not overbeat.
Step 10 of 10
Sugar-Free Red Velvet Cake
Frost and assemble the cakes as desired. Refrigerate until ready to serve.
PRO TIP To assemble a 2-layer cake, flatten the tops of the cakes by sawing off the tops with a serrated knife. Apply a layer of frosting to the top of the first layer, then stack the second cake layer on top of the frosting and frost the outside of the entire cake.
