Preheat oven to 350°F. Line a cookie sheet with parchment paper or foil.
Place graham crackers in a single layer in prepared pan and sprinkle mini marshmallows on top.
In a medium saucepan, combine butter, sugar, and cinnamon and cook, stirring often, until sugar has dissolved, about 5 minutes.
Remove from heat and stir in vanilla extract.
Pour over the marshmallows, making sure to cover the graham crackers, then sprinkle the top with almonds and coconut.
Bake for 15 minutes.
Let cool on the cookie sheet completely. Slide off and place on cutting board. Using a sharp knife, cut into 3" squares and halve each one into triangles.
Notes
STORE/FREEZEStore in an airtight container at room temperature for about 4-5 days.Freeze cooled bars in a freezer-safe container or bag with parchment between layers to prevent sticking. They will keep well for up to 2 months.