Line an 8x8 baking pan with parchment paper, leaving a slight overhang for easier removal. Set aside.
In a large pot, heat coconut oil, almond butter and sweetener over medium-heat until the mixture comes to a boil, stirring constantly. Lower the heat and simmer until the mixture is slightly thickened, about 1-2 minutes. Remove pot from heat. Stir in vanilla and salt
until combined. Using a rubber spatula, stir in the oats, flour, almonds, coconut, cinnamon and salt until dough is combined and sticks together. Add water and fold in the chopped nuts.
Transfer the mixture into the prepared pan while pressing down very firmly and flattening with a spatula until tight and compressed. Press in the optional chocolate chips.
Place the pan in the freezer for 1 hour or until bars are set.
Use the parchment overhang to transfer the uncut bars to a cutting board.
Using a sharp knife, cut into even bars. Bars get softer when left out at room temperature. Store leftovers in a clear resealable bag or container in the fridge or freezer.
Bake in preheated oven at 350 for 15-18 minutes, until edges are slightly brown.
Remove from oven and allow to cool completely.
Use the parchment overhang to transfer the uncut bars to a cutting board.
Using a sharp knife, cut into even bars. Store leftovers in a clear resealable bag or container in the fridge or freezer.