s'more jumbo muffins

Ingredients For s'more jumbo muffins

• 1 1/2 c

  flour
• 1/2 c

  grahm cracker crumbs(about 8 squares)
• 1/4 c

  packed brown sugar
• 1 tsp

  baking soda
• 1/2 tsp

  salt
• 1 lg

  egg
• 1 1/2 c

  buttermilk
• 1/4 c

  canola oil
• 3/4 c

  semi sweet chocolate chips
• 1 1/4 c

  mimiature marshmallows(divided..1c..1/4c.)