The recipes for frozen fruit are the same as fresh fruit. In fact, I freeze my fresh fruit for a day or so to extract more juice from them. You can weigh them still frozen, or of course go by the weight on the package!
I've been recommending Jack Keller's website for wine (jackkeller.net). It's kind of hard to navigate at first, but he has literally hundreds of recipes for fruit. Try this link:
http://winemaking.jackkeller.net/request.asp
There are recipes there, and then you can also click on the "recipes" link to get more. He has over 30 recipes just for dandelion wine. All berries are listed, too.
I just bottled my 5 gallons of blackberry this afternoon. It's great, and it's going to get better after a year or so.
Anyway, here is Jack's recipe from his website for frozen strawberries:
Frozen Strawberry Wine
3 lbs. frozen strawberries
1 11-oz. can Welch's 100% White Grape Juice Frozen Concentrate
1 lb 14 oz. light brown sugar
2 tsp. citric acid
1/4 tsp. grape tannin
water to make 1 gallon
1 tsp. yeast nutrient
1 sachet Red Star Côte des Blancs wine yeast
Thaw strawberries and grape juice concentrate. Dissolve sugar in 5 pints water and bring to boil. Strain juice or syrup from fruit and save liquid. Put thawed fruit in nylon straining bag in primary and crush fruit with hands. Pour boiling water over fruit, cover primary, and set aside to cool. When cooled to 80-85° F., add grape juice concentrate, tannin, acid, yeast nutrient, reserved juice or syrup, and 1 pint water. Stir well to blend ingredients. Add activated yeast, cover and stir daily. Do not further crush, mash or squeeze bag of strawberry pulp. Remove bag on 7th day and allow to drip drain, saving drippings. Return drippings to primary and transfer to secondary fermentation vessel. Top up to one gallon if required, attach airlock and set aside. After 45 days, rack into secondary containing 1 Campden tablet dissolved in a little wine and reattach airlock. Rack again after additional 60 days. Stabilize wine when clear and rack after additional 45 days. Bottle and age at least 6 months.
This uses welch's as a body building ingredient, as strawberry wine can be quite thin. Also, this recipe is for one gallon. If you want to make 3 gallons (for your carboy!), just triple the recipe except for yeast.
There are other strawberry wine recipes on the website.
Lorena