Peach Cake Topped With Brown Sugar Frosting - Quickie Treats

Ingredients

• 15 ounces yellow cake mix
• 4 to 6 fresh peaches, peeled and sliced, or 16 ounces frozen peaches, not thawed
• 6 ounces peach-flavored gelatin (two 3-ounce packages)
• 4 large eggs
• 1 cup vegetable oil
• 1 teaspoon vanilla extract
• 2 cups brown sugar
• 2/3 cup heavy cream
• 1/2 cup unsalted butter, at room temperature
• 1/4 teaspoon salt (optional)