Steps:

1. Preheat the oven to 350°F. Prepare two 6in cake pans with parchment and cooking spray. 

2. Cream together the butter and sugar until light and fluffy. Add the eggs one at a time, mixing well between each. Add the orange zest and orange juice until fully combined. 

3. In another bowl, whisk together the flour, baking soda, xantham gum, and salt. Add the dry ingredients to the wet ingredients and mix completely. 

4. In a small sauce pot mix together the sugar and water, simmer until the sugar is fully dissolved and starts to take on an amber color. 

5. Pour the sugar into one of the cake pans, layer the blood orange slices on top of the sugar mix. Fill both cake pans equally with batter and bake for ~30 minutes or until a toothpick comes out clean. 

6. When the cakes are done, allow them to cool completely. 

7. For the whipped cream frosting, add the heavy whipping cream to a cold bowl with the powdered sugar and whip until it reaches stiff peaks. Top the first layer of cake with whipped cream and place the second layer on top. 

8. Enjoy!