Strawberry Vinegar (EP)

You'll earn this trophy the very first time you make rice porridge for Licia in-game. If following this guide and Walkthrough, you'll earn this about mid-way during your first playthrough in the Sweetness and Light Ending. You can also find this in the Strawberry Kisses and Bittersweet Goodbye Endings.

See the Platinum Walkthrough [LINK] or the Sweetness and Light trophy for more details and exact steps.

After the pancakes, after a couple scenes, Licia will be sick with an upset stomach. You decide to leave her be and go to school alone, but when you get back, she's still asleep and hasn't eaten a thing. Choose to help your father make some Rice Porridge for her to earn this trophy.