Crock-Pot Lava Cake

Ingredients

• 1 package devil's food cake mix (regular size)
• 1-2/3 cups water
• 3 large eggs, room temperature
• 1/3 cup canola oil
• 2 cups cold 2% milk
• 1 package (3.9 ounces) instant chocolate pudding mix
• 2 cups semisweet chocolate chips
• Whipped cream, optional