Line two 8 or 9-inch round baking pans with parchment paper. Set aside.
In a large saucepan, combine corn syrup with sugar. Heat over medium heat, stirring constantly until sugar dissolves. Bring mixture to a boil. Boil for 1 minute then remove from heat.
Stir in peanut butter and food coloring until smooth. Add cereal and fold gently until evenly coated.
Pour mixture into prepared baking pans. Pat gently with back of wooden spoon. Allow cool and set about 30 minutes.
Remove from pans by lifting the parchment paper. Place on cutting board and cut each circle into 8 triangles. Separate slightly so there is a space between each triangle.
For the Christmas trees, add melted white chocolate to a sandwich sized plastic bag. Snip off the corner and drizzle over one pan of scotcheroos. Add rainbow chips and star to trees. Using the melted white chocolate, add a drop to the top of a peanut butter cup and press into the bottom of the tree for the trunk.
For the Reindeer, add melted chocolate to a sandwich sized plastic bag. Snip off the corner and drizzle generously over the second pan of scotcheroos, coating the top completely. Break each pretzel and add as antlers. Add the cinnamon red hot for the nose and candy eyes!
Allow chocolate to set, about 10 minutes. Store in airtight container for several days to maintain freshness.
Notes
Store them in an airtight container at room temperature. They’ll stay fresh for several days.
Are your bars too hard? The most common cause is pressing the cereal mixture down too hard when you add it to the pan. You just need a light touch to ensure everything sticks together. The harder you press, the harder the finished treats will be.