Purple Roses Birthday Cake
Ingredients for Decoration and Frosting
- 1 cup of unsalted butter, softened
- 4 cups of powdered sugar
- 1/4 cup purple sweet potato puree (to be used for natural coloring)
- 2–3 tablespoons of milk (use more or less to adjust thickness)
- 1 teaspoon vanilla extract
- A pinch of salt
- Optional: Fresh blueberries or blackberries for garnish (to enhance the natural purple theme)
These are all food grade ingredients you can find at a grocery store. The purple sweet potato can be used as a natural, safe for all ages, deep purple coloring.

Required Equipment
To make the beautiful Purple Roses Birthday Cake, you can use basic baking equipment found in most home kitchens. You also won’t need any baking gadgets.
- Two 8-inch round cake pans
- A couple of mixing bowls (one big for batter, one for frosting)
- An electric mixer or whisk (a hand mixer is totally fine if you’re a beginner)
- Measuring cups and spoons
- A spatula for folding and spreading
- A piping bag with a rose tip (a Wilton 1M tip is great for easy roses)
- A cooling rack
Baking can be a little stressful, especially if you’re a beginner, but these tools help make the baking easy and fun!
Detailed Instructions for Baking
Baking the Purple Roses Birthday Cake is a great calming activity to do.