If desired, toast the almonds for extra flavor: Place almonds in an even layer on ungreased baking sheet and bake at 350F on middle rack for 10-15 minutes or until aromatic and toasted. This step is optional, but it brings out the best flavor in the almonds.Place almonds and chocolate chips i Crockpot on low for 1 hour, without opening lid. Stir well until chocolate is completely smooth and melted.Drop mixture by spoonfuls onto a large sheet of wax paper or parchment. Lightly sprinkle a bit of flaky sea salt on top of each cluster. Let cool completely before serving. Chill in fridge for quicker setting of chocolate. Clusters keep well in airtight container at room temp.