In the latest edition of Kerux, there is a fine presentation on the Hungarian Reformed Churches. James T. Dennison even translated their confessions.
Of those confessions one is the Erdod Confession. I thought that it had a good and condense statement on the sacraments that presented the basic Reformed position. This is the Erdod Confession from 1544:
Baptism, the Lord’s Supper takes away Sins (Two Sacred Rites: Baptism and the Lord’s Supper and their Administration and Effect).
In the administration of the sacraments of baptism and the Lord’s Supper, we follow the institution of Christ and the early church and we confess all our sins to be taken away through baptism and the grace of God to be offered and in the Lord’s Supper the body and blood of Christ to be truly exhibited beneath the bread and wine. Moreover, we desire that the institution of Christ in both sacraments be celebrated and administered in the native language, in a manner which befits reverence, and in the same rite and form in all the churches. We condemn those who diminish original sin, and those who assert that infants are not to be baptized. Likewise we condemn the violators of the institution of Christ and the profaners of the Lord’s Supper, and those who withdraw the other element from the laity and the lawful use of the Lord’s Supper, and turn it into the dreadful buyings and sellings and abomination of the Mass. Likewise we condemn all blasphemers, who call this institution of Christ, which exists in our churches, a diabolical mass. Peter therefore commands that this blasphemy be addressed and that such blasphemers are to be punished (2 Pet. 2:12)