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.
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.
Walked 100 miles.
Found all 60 mice.
Unlocked all products.
Finished Emily's Place.
Watched the entire credits.
Unlocked every photo-moment.
Finished the Ski-hut.
Finished the Farmers Market.
Entertained a table 100 times.
Finished Happy Funtime Land.
Served 500 drinks.
Finished Talon Lake.
Served 250 products quickly.
Finished the Garden.
Had an order on your tray before it was ordered.