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Combine flour, baking powder, baking soda, salt, and spices in a medium bowl and set aside
														 
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Whisk eggs until light and fluffy
														 
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Add pumpkin, brown sugar, milk, oil, and vanilla
														 
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Add flour mixture to the pumpkin mixture to combine, but do not overmix
														 
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Separate the batter into 2 bowls
														 
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Add melted chocolate to one of the bowls and combine
														 
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Spread a layer of pumpkin batter into a loaf pan prepared with cooking spray
														 
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Spread a layer of chocolate batter
														 
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Continue alternating batters but be sure to finish with the pumpkin batter
														 
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Use a knife to swirl the chocolate into the pumpkin batter but do not mix
														 
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Sprinkle with cinnamon and chocolate chips
														 
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Bake in an oven preheated to 350 degrees for 1 hour, or until a toothpick inserted into the middle of the bread comes out clean.