Creating the Candied Pansy Lemon Layer Cake involves several straightforward steps. Here’s how you can make it:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour three 9-inch round cake pans.
2. Mix Dry Ingredients: In a large bowl, whisk together the flour, baking powder, baking soda, and salt.
3. Cream Butter and Sugar: In another large bowl, cream the softened butter and granulated sugar until light and fluffy.
4. Add Eggs: Beat in the eggs, one at a time, ensuring each is fully incorporated before adding the next.
5. Combine Wet Ingredients: Mix in the buttermilk, lemon zest, lemon juice, and vanilla extract until well combined.
6. Combine Mixtures: Gradually add the dry ingredient mixture to the wet ingredients, mixing until just combined. Do not overmix.
7. Divide Batter: Pour the batter evenly into the prepared cake pans.
8. Bake: Bake in the preheated oven for 25-30 minutes or until a toothpick inserted into the center comes out clean.
9. Cool Cakes: Allow the cakes to cool in their pans for about 30 minutes. Then, carefully transfer them to wire racks to cool completely.
10. Prepare Frosting: In a mixing bowl, beat the softened butter until creamy. Gradually add the powdered sugar, mixing until smooth. Add heavy cream and lemon extract, beating until fluffy.
11. Assemble the Cake: Place one layer of cake on a serving platter. Spread a layer of frosting on top. Repeat with the next layer. Place the final layer on top and frost the top and sides of the cake.
12. Decorate: Garnish the top of the cake with candied pansies for an elegant finish.

These simple steps will guide you in creating this incredible dessert that will undoubtedly impress your guests!