Removing an ingredient from a recipe
Select the recipe that contains the ingredient you want to remove.
Select the ingredient tab in the bottom pane.
Select the ingredient you want to remove.
Click the minus button.
A pop-up will appear asking you to confirm that you want to remove the selected ingredient.
If you still want to remove the ingredient click "Delete" and the ingredient will be remove from the recipe. If not click "Cancel".
If the recipe scaling checkbox is ticked you cannot remove the ingredient.