Key Lime Pie Cake - Food By The Gram

Ingredients

• 1 cup all purpose flour
• 1/3 cup sugar
• 1/2 tbsp baking powder
• 1/4 tsp salt
• 1/2 cup milk
• 1/4 cup canola oil
• 1 tsp vanilla extract
• 1 egg (beaten)
• zest of half a lime
• 6 tbsp fresh lime juice
• zest of one lime
• 4 egg yolks
• 5 tbsp butter
• 1/2 cup granulated sugar
• 6 tbsp unsalted butter (softened to room temperature)
• 1/2 cup graham cracker crumbs (or 2.5 sheets, crushed finely)
• 1.5 cups powdered sugar
• 1/2 tsp vanilla extract
• 1/2 tbsp milk (may need to add more to reach desired consistency)