There's actually 101 (1 can be bought elsewhere, though) and you can get 3 per "day" - but by changing the system clock past 4 AM (forward or backwards), you can force a new day in-game for another 3 recipes. On each "new day" just get the daily gifts your buddies run up to you for (1 item gift per day and 1 emote - but only until you get all 17-18 emotes) and sleep in the crafter's bed in their house until they're at the crafting table (best to only have 1 crafter in their house and the rest combat/gathering buddies to absorb the 2 request though bubbles. This way you only have 1 house to check, saving a ton of time and limiting what recipes you need to check off the list). If the buddy is not at least inside after 4 tries, make sure they're not in an art gallery or outside with a thought bubble (if they have a thought bubble, accept the request and cancel it form the request list) and double check your recipe list to make sure you don't have all the buddy recipes for that life (they won't craft if there's no recipe left to give).
Keep track of which recipes you have (Note: the Long Stone Countertop for Carpenter can be bought for dosh in Eternia Village's Tool Shop, so skip it on the list if you already bought it) and after you receive 3 per "day", move on to the next day. It should take about 2-2.5 hours of timeskipping to get them all. While you're at it, there's also 20 recipes (all craftable as Cook, but can be given to you by any buddy from any life) from completing buddy requests. Note that they share the 3-per-day limit with the indoor crafting recipes, so if you already received one or more of the other type, it reduces how many more of either you can get that day.
When done, return to normal time and check in on both Don's wandering shop in Ginormosia and any veggie stall outside a monster camp to resume their normal cycling. Nothing else is adversely affected by timeskipping unless you forgot to water crops when they were in seed/sprout stage (fully grown crops/boss veggies will never wilt).
The only other alternative is a save editor (no, I don't have the link for it) that can force add recipes, but it adds every recipe in the game if you do so (it does not have the granularity to unlock only specific ones)
