How can I bake my dogs vitamins into his treats?

I give my puppy a multi-vitamin everyday but i have to crush it because he doesn’t want to chew it. I’ve started baking him treats because I did my homework and realized all the crap in store dog food and treats are crap and bad for him. so i’m kinda new at this. should i just use a little less dry ingredient + crushed vitamins? should i put it in a glaze? will it cook out the nutrients if i bake it? has anybody had experience with this type of thing?