Rhubarb Upside Down Cake Recipe | Full Circle

Ingredients

• 10 ounces unsalted butter, at room temperature, plus more for the pan
• 1 - 1 1/2 pounds rhubarb, cut into 4-inch pieces, you need enough for 16 4-inch pieces so the amou
• 1 1/2 cups sugar, divided
• 1/2 cup packed light brown sugar, divided
• 2 cups all-purpose flour
• 1 1/4 teaspoons baking powder
• 1/2 teaspoon salt
• Grated zest from one lemon
• 1 teaspoon pure vanilla extract
• 4 large eggs, at room temperature
• 1/3 cup full-fat plain yogurt