1cupgranulated sugar (organic)I used an erythritol/stevia baking blend
1tspbaking powder
Cream cheese frosting
1stickbutter (unsalted)
8ouncescream cheese
1tspvanilla extract
1cupgranulated sugar (organic)blended to powder in blender, can use same sugar substitute as above
1orangeszest only (reserve orange for another use)
Instructions
Put oranges in pot with cold water. Bring to a boil and boil for 2 hours. Drain and let cool, then remove navel, seeds, and pips inside.
Puree oranges in food processor into a creamy mixture.
Preheat oven to 375, and grease your baking pans, line bottoms with parchment paper. I used 3 6" round pans for the cake pictures. If you use 1 or 2 larger pans, you'll need to increase baking time accordingly.
Beat eggs using stand or hand mixer for 5 full minutes until tripled in size. Fold in orange purée, almond flour, sugar or sugar substitute, and baking powder.
Pour into prepared pans, making sure to divide batter evenly if using more than 1 pan.
Bake for 20 minutes, then loosely cover with foil for another five minutes. Toothpick should come out clean, and cake should spring back in the center when lightly pressed.
Cool completely on wire racks.
When ready to frost, beat butter and cream cheese together until smooth. Add powdered sugar and orange zest and beat until fluffy. I did a medium-thick layer of frosting in between the layers, a "naked" coat on the edges, and the rest on top.