Balanced Salts. 5oz crystal light, 4oz roasted barley, 3oz double roasted crystal.
Based on boiling 7.00 gallonsliters at 1.044 for 30 minutes, this will decrease your wort by 0.50 gallonsliters, bringing your after boil OG to 1.047. You wanted an OG of 1.048. It looks like it will be under.