Is There a Problem with Spreading Foods (e.g., Peanut Butter, Cheese, Hummus, etc.) onto Challah, Matzah, etc. on Shabbos?;
ממצוא חפציך (Mimtzo Cheftzecha): Understanding the Conditions;
ממצוא חפציך (Mimtzo Cheftzecha): How to Deal With a מצוה (Mitzvah);