The solution is to require % by mass number next to each ingredient. This way even if strawberry is first ingredient, the low percentage will make the scam obvious.
That solution is already in place for sugar. The jam that is the focus of the tweet is 60% sugar, and this is prominently printed on the label. What problem do you think you're trying to solve?
That's likely untenable for food companies because it means disclosing their recipe.