Delicious Recipes comes with Recipe Keys widget which displays all your recipe keys.
You can configure the recipe keys via Recipes > Recipe Keys as shown below.
You can add the name, slug and a short description. You can also choose the color or icon you refer for your recipe key.
To add the Recipe Keys widget in the widget area, navigate to Appearance > Widgets. Select Delicious: Recipe Keys widget and add it to your preferred widget area.
Add the title for the widget and click on Save button.