Sweet foods are soft, sometimes gums have become sensitive, or false teeth don't fit any more. Medication can leave a metallic taste in the mouth. sweet foods seem to over come this.
When getting my Mum to eat, I started looking at calories. Have you tried complain, tastes horrid but you mix it in mash potatoes, with a little milk and butter you can't taste it.
Do you eat sweet potatoes? mashing them alone is a little too soft. But one sweet potato mixed with white potato.
Gives your mash a sweet taste and makes it orange. My Mum would eat anything orange on her plate first.
Carrots with a honey glaze?
I often think of the spike Milligan poem
I eat my peas with honey, I have done all my life, It makes the peas taste funny , put it keeps them on the knife.
Mint Jelly, tastes sweet.
Horlicks, have you read the added vitamins.
Full milk, cheese, custard.
Complan hides well in custard too.
Also hides in porridge
Fortsip shakes are good if you like the flavours, we didn't at my house.
My Mum just didn't know what to do with the food in the end she just stared at it. So I fed her , which she was happy for me to do.