Here is the full list of all 21 Delicious - there are Emily's Home Sweet Home achievements.
You have Chosen every product in every environment at least once.
Unlocked and Collected Everything.
Unlocked all products.
Walked 100 miles.
Bought all items in the house.
Finished all the Challenges and Bonus Levels.
Bought all items in all restaurants.
Achieved 3 stars on each day.
Unlocked every photo-moment.
Finished Emily's Place.
Found all 60 mice.
Finished the Ski-hut.
Finished the Farmers Market.
Watched the entire credits.
Finished Happy Funtime Land.
Entertained a table 100 times.
Served 500 drinks.
Finished Talon Lake.
Served 250 products quickly.
Finished the Garden.
Had an order on your tray before it was ordered.