AITA for giving a very honest answer when my DIL asked about her cooking?

I'm a 55 y.o. man, my son is 34. His wife is 33. I'll call my son H and his wife C. C's an excellent cook and baker, but I'm not crazy about her recipes. She mostly cooks what I'd call "socially conscious" recipes. They're heavily based on plants and grains, and she's very interested in what she calls "ancestral cuisine." This means she tries to adapt what she believes are historical recipes from various parts of the world. Like, she'll read about what food was served at a Roman banquet, or try to recreate a typical week's worth of meals for an American colonist.<br><br>C's very very good at this, but the food itself isn't my cup of tea. I was raised in the Midwest and I love what I was taught was "home cooking": roasts, mashed potatoes, macaroni and cheese, etc. I know I'm in the minority with my opinions here, since C is a fantastic cook and people from all over town come to her potluck suppers, which H and I go to out of a sense of duty.<br><br>H and C have a 6 y.o. daughter/ grandchild and a 15 month old son. I love both of them, but I don't like taking them to C's potluck suppers because the food is so heavily slanted towards adults that the kids have nothing to eat but bread. It doesn't seem fair to me to drag the kids to an event where they get nothing but a few dinner rolls. The older kid has started to complain about these events too, but I always tell her to be polite and eat her bread, because it's not for me to interfere.<br><br>Last night, tho, was the issue. We were invited over for Sunday dinner with H and C. I love seeing the grandkids, but I knew the food would be meh, so I brought my own roasted chicken and some instant mashed potatoes with me, figuring I could eat my "real dinner" in the kitchen while C served everyone else.<br><br>This was considered to be a huge slight. C asked me, repeatedly, if I liked her cooking, if I'd ever tasted anything I liked, etc. I was worried that if I said "No, I love your cooking," she'd take it as permission to serve me some of her food, which honestly I find disgusting. But if I said "No, I don't like it," I'd be calling her cooking disgusting. So I just kept saying "I don't have to worry about liking it, because I don't have to eat it."<br><br>This seemed to enrage her. She kept pushing for me to admit that I don't like her cooking, and every time I said "I don't have to worry about it," she'd get angrier. I was getting frustrated too, because it wasn't like she'd ever asked for my opinion before. Finally, she asked me if I liked her cooking and I said "No, I don't."<br><br>This led to a full-blown argument, with C saying I'd hurt her feelings and I was being mean, and me saying she insisted on this information and I wasn't going to lie to her. The rest of the evening was very tense. I keep getting text messages from H, telling me I was "really mean to C's feelings" and asking me to "be nicer" or else "get used to not seeing your grandkids."<br><br>AITA here?