Step 1

Add the water, walnuts, butter, sugar, light brown sugar and cinnamon to a saucepan over medium high heat.

Step 2

Cook the mixture until the liquid has mostly all evaporated, and the walnuts are clinging together.

Step 3

Stir in the salt.

Step 4

Transfer the mixture to a parchment lined baking sheet, and press into a single flat later.

Step 5

The mixture will harden as it cools. Once cool, break apart and serve.