Line an 8x8 inch square pan with parchment paper, leaving an overhang for easy removal.
To a large bowl, combine the rolled oats and rice cereal.
1 cup rolled oats, 3 cups rice cereal
In a small saucepan over medium heat, stir together the cashew butter and honey and bring to a bubble. Let it bubble gently for 1-2 minutes, stirring frequently, then remove from the heat and stir in the vanilla and salt.
2/3 cup cashew butter, 2/3 cup honey, 1 teaspoon vanilla extra, Pinch of salt
Pour the honey mixture into the cereal and oats and stir to combine. Dump it out into the prepared pan and use a spatula or bottom of a measuring cup to firmly pack it into the pan.
Refrigerate for at least 2 hours or overnight.
Remove the chilled bars and cut them down the middle then crosswise 6 times so you have 14 long bars. Press the M&Ms or peanuts into the top of the bars as desired.
2 Tablespoons mini M&Ms, 1 Tablespoon crushed peanuts
Set a piece of parchment paper on a sheet pan. Melt the chocolate and coconut oil in a microwave safe bowl in 30-second increments until smooth. Transfer to a flat plate or bowl. Dip the bottom of each bar into the chocolate so it goes up 1/8 of the sides of the bar. Allow excess to drip off and place on a piece of parchment paper. Drizzle them with remaining melted chocolate. Top with additional flaky sea salt if desired. Let the chocolate set at room temp or in the freezer and enjoy.
2 cup semi-sweet or dark chocolate chips, 1 Tablespoon coconut oil